Usage: gtkdoc-depscan [options] Options: --version show program's version number and exit -h, --help show this help message and exit -b BOOKS, --book=BOOKS name of a devhelp book to consider -d PATH, --html-dir=PATH path of additional folders with devhelp books -s, --summarize print only a brief summary -u, --list-unknown list symbols not found in any book -v, --verbose print additional information